linux系统查看机器的cpu?
linux查看机器的cpu
1、查看物理CPU的个数
cat /proc/cpuinfo |grep "physical id"|sort |uniq|wc -l
2、查看逻辑CPU的个数(线程数)
cat /proc/cpuinfo |grep "processor"|wc -l
3、查看CPU是几核
cat /proc/cpuinfo |grep "cores"|uniq
4、查看CPU的主频
cat /proc/cpuinfo |grep MHz|uniq
扩展知识：
uname -a
Linux euis1 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT 2007 i686 i686 i386 GNU/Linux (查看当前操作系统内核信息)
cat /etc/issue | grep Linux
Red Hat Enterprise Linux AS release 4 (Nahant Update 5) (查看当前操作系统发行版信息)
cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
8 Intel(R) Xeon(R) CPU E5410 @ 2.33GHz (看到有8个逻辑CPU, 也知道了CPU型号)
cat /proc/cpuinfo | grep physical | uniq -c
4 physical id : 0 4 physical id : 1 (说明实际上是两颗4核的CPU)
getconf LONG_BIT
32 (说明当前CPU运行在32bit模式下, 但不代表CPU不支持64bit)
cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l
8 (结果大于0, 说明支持64bit计算. lm指long mode, 支持lm则是64bit)
赞 (0)